This is a highly specialized skill, and difficult to execute. In this case, the example is in 9, but any odd grouping can be used. You can also try groups of 5 or 7.

Practicing these transpositions is beneficial and productive on many levels. They are a great tool for ear training and rhythmic training, for molding and maneuvering rhythms, and musically, they're a very effective way to create interesting and eclectic sounds. When you transpose into 4/4, it is important to focus on the 1/4 note pulse. Counting as you play the exercise is essential to help keep your place.

Notice that by transposing an odd time figure into 4/4, it's first beat will consecutively step through all the 1/16 note positions with each repetition. Accordingly, it will start on the first 16th, then the second, third and fourth.